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为了解决曲面基础作用于土体的极限承载力问题,改进了Prandtl机构和Hill机构,利用极限分析理论,得到了底面为曲面基础地基极限承载力的上限解;通过两者的比较,以及与底面为平面基础地基极限承载力的比较,所得的上限解大于处于地基表面的平面基础地基极限承载力的上限解,小于埋深为基础宽度一半的平面基础地基极限承载力的上限解,研究结果可供地基承载力设计及计算参考。
In order to solve the problem of the ultimate bearing capacity of soil with curved surface, Prandtl mechanism and Hill mechanism are improved. By using the limit analysis theory, the upper bound solution of the ultimate bearing capacity of foundation with curved surface is obtained. By comparing the two, For the comparison of the ultimate bearing capacity of foundation with foundations, the upper limit solution obtained is larger than the upper limit solution of the ultimate bearing capacity of the foundations on the foundation surface, less than the upper limit solution of the ultimate bearing capacity of the foundation with half the foundation depth. For foundation bearing capacity design and calculation reference.